Door-securing device.



1. P. MACKAY DOOR SECURING DEVICE.

APPLICATION HLD MAY 24. 1916.

L%3,61& Patented Oct. 16, 191?.

uites :9. MAQKIAY, or NEW YORK, n. Y.

' DOOR-SECURING DEVICE.

' Specification of Letters yatent.

" Patented Oct. 16, 1917.

v .eppfication filed May 24,1916. Serial No; 99,598.

3 To all whom it may concern:

Be it known that 1, JAMES P. h/LiCKAY, a sub ect of the King of Great Britaimresiding-at New York, in the county of New York and State ofNew Yrk,have invented new and useful Improvementsin Door-Securing Devices, of which the following is a specification. p

This invention relates to safet-y fastenmgs for doors. ;-The device isadapted to be used particularly-in combination with a conven- -tional standard lock having ayspring projected bolt.

Notwithstanding the fact that many locks theinsertion of a tool between the vertical edge of the door and the next-adjacent side of the door frame, causing'the ordinary bolt to be released froni thekeeper. This is done I through the fact that in locks there is a limit to the projection of the bolt in the keepenJand the-projection is entirely too 1 inadequate for the purpose of preventing w I thesame from being released by the springing of the door.

lvfy improvedfastening consists of anseat to assume a vertical position and illns- 'trating the application of my improved fastening thereto.

auxiliary slidingbolt which is adapted to be, applied to thedoor without removing the ordinary locktherefr'om and one in which i I the bolt -may be positively-locked on the projectionof the bolt of the ordinary lock mechanism. In carrying the invention "into practiceyuse is made of a sliding-bolt having an effective projecting end'whi'ch is considerably greater in length than the effec' tivelockingend of the ordinary bolt-mechanism and designed to accommodate itself in a keeper of substantially the sameproportion.

A further object of the invention is to provide a fastening attachment which is applicable to a'lock which is alreadyin position" on the door, one which may be associated with thelock by simply changing the same from its normal horizontal position to l a verticalposition, one in' which thebolt may be accurately associated with the "sliding" bolt of the lockrwhereby to cause the "same to'be held retracted against the action of "its spring during the operation of projecting the auxiliary bolt to an operative of swinging movement of the door. In other position in its keeper.

; operating means t A further object of the invention is to providean auxiliary fastening which may be used in combination with a lock which is so mechanically designed as to render it eX- tremely difficult to pick or otherwise Inechanicallyenter the same, causing the bolt of said-auxiliary fastening to be projected over such an area and within a correspond ing keeper so-as to materially increase the value of the look as a positive means for preventing both mechanical and forcible entry of the door. I I lVith the above and other objects in view which willappear as the nature of the invention is better understood, the same consists iii-the improved construction and novel arrangement ofparts which will hereinafter be fully described and particularly pointed out.

In the accompanying drawings has been illustrateda simple and preferred form of the lnvention, 1t bemg, however, understood 'that no limitations are necessarily made to the precise structural details therein exl1ibited,-but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

4 In the drawings Figure l is a front view of a portion of P the door-showing lock turned upon its Fig. 2 is a plan view of the fastening re moved from the door, the bolt being retracted.

Fig. 3 is a similar view showing the-bolt proj ected.

- Fig. f is a section taken vertically through the sliding bolt of the fastening showing the herefor.

Fig; 5 is a view takenat right angles to Fig. 6 is a perspective View of the device. As stated, Iemploy a fastening whlch in 4 the true sense of the word is supplemental or auxiliary to the sliding bolt of a lock. 1 provlde as a new and useful artlcle of manufacture a device wh1ch'1s separate, CllS- tinct and complete in itself and applicable to locks'of the ordinary type without changing the seat of said lock. The device or article is also constructed whereby it will properly accommodate itself to ordinary lock mechanism regardless ofthe direction common design.

words, the device is constructed so as to accommodate itself to right and left hand opening doors. This is done by simply reversing' the position of the device and correspondingly reversing the position of the ordinary lock with which it is associated.

The device conventionally illustrated at (A) herein is the casing oi a lock having a sliding key actuated bolt (B) of any The normal position of the lock is shown in dotted lines. In associating the lock with my improved auxiliary fastening, I do not change the position of the seat of the lock, but simply turn the same from its normal horizontal position to a vertical position, causing the bolt (B) to extend downwardly when the door opens from one side or upwardly when the door *opens from theopposite side. I wish particularly'to emphasize the fact that it is not necessary to remove the mentioned ordinary lock structure (A) from the door when 'jamb.

applying my auxiliary fasteningto the door. The auxiliary fastening consists of a housing 1 adapted to be secured to the door by suitable fastenings 2,,and said housing is arranged in line with a relatively long keeper 3 secured by fastenings 4. to the door The housing 1 is provided witha horizon tal sliding bolt 5 provided with a substantially U-shaped recess 6, which is adapted when the bolt is projected as seen in Fig. 5,

. to aline with a similarrecess'7 formed in one wall of the housing. Along one edge the bolt is provided with a toothed surface 8 adapted to coact with apinion 9 whose spindle 10 is mountedto rotate in the housing. Said spindlealso extends through the" doorto which the fastening is applied, and on the outside it is'provided with a hand knob 11, a similar knob 12 being also secured to the inner end of the spindle." In this 7 said face 13 of the bolt 5.

manner mechanical motion can be imparted to the sliding bolt 5 fora purpose to be hereinafter explained.

The face 13 of the bolt 5 is disposed in the same horizontal plane with the top of the recess 7. The housing 1 is provided with a vertical relatively wide recess 14E int.

I cess 6 to aline with the bolt 13, the latter will a be extended into said recess 6 and into the recess7. Said recess 6 is'tormed to one sidt of the center of the bolt 5, and in this manner, it will be observed that the effective locking end 15 of the bolt will be relatively long and in practice many times greater in length than the length of the effective looking end of the bolt B. The keeper 3 is of a length corresponding with that of the effective locking end 15 of the bolt 5, and incident thereto it becomes absolutely impossible to retract said-end 15 from its keeper by springing the door in a manner door, securinn the'housinp; in position and.

at the same time maintaining a relatively fixed condition of the casing A of the ordinary mechanism. The housing 1 comes flush with the vertical edge of the door and is adapted to prop'erly-aline with the keeper 3 when the door is closed. The ordinary mechanism in the lock casing A is controlled in the usual manner. When it is desired to lock the door. the bolt B is released, whereby it is. capable'ot moving under the action of its spring; (not shown). The spindle 10 is then actuated to cause the bolt 5 to'move in its casing. advancing the end 15 into the keeper until a vertical alinement of the recess 6 with the bolt B has been obtained. At this moment, the bolt B under the action of its spring is automatically projected into the recess 6 and the bolt 5 held in a relatively fixed condition. A reversal in the just described operation is made when it is desired to release or retract the bolt 5 from the keeper.

Having thus described the invention, what is claimed as new, is r 1. A fastening for doors comprising ahousing, a bolt slidable therein and'means for projectingrand retracting the bolt, said housing having. a relatively large recess through which the bolt is exposed and airel atively small recess between the end walls of the large recess, and said bolt having a recess adapted to register with the small recess in'the housing. incombination with a lock casm'g havino'a key actuated bolt, sald -lock casing being adapted to be mounted with one end seated in the large recess of the housing and the key projected bolt adapted for engagement with the small recess in the housing and also with the recess in the bolt mounted in the housing in one position of said bolt. 7

2. Ina door fastening device, a housing,

a bolt slidable therein, means for projecting and retracting the bolt, and a keeper adapted to receive one end of the bolt when projected, said housing having a recess through which the bolt is exposed, in combination with a conventional unitary lock casing mounted with one end thereof seated in the recess of the housing and a slidable key re tracted bolt in said lock casing with one end thereof impinging on the bolt within the housing, said last mentioned bolt having a recess adapted to be engaged by the bolt in the lock casing. v

As an article of manufacture, a door fastening device comprising a housing, a bolt slidable therein, and means for projecting and retracting the bolt, said housing having a recess through which one face of the bolt is exposed, and said bolt having a recess which may be placed in and out of registry with the recess in the housing; the recess in the housing being adapted to form a seat for one end of a conventional unitary lock casing having a key retracted bolt With which the bolt in the housing is adapted to cooperate.

In testimony whereof I, affix my signature in presence of two witnesses.

JAMES P. MAGKAY. Witnesses:

ANNA V. DOYLE, CHRIS FEINLE, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

